/*
 * Copyright 2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.gradle.execution;

import com.google.common.collect.ImmutableList;
import org.gradle.StartParameter;
import org.gradle.api.execution.TaskActionListener;
import org.gradle.api.execution.TaskExecutionListener;
import org.gradle.api.execution.internal.TaskInputsListener;
import org.gradle.api.internal.cache.StringInterner;
import org.gradle.api.internal.changedetection.TaskExecutionModeResolver;
import org.gradle.api.internal.changedetection.changes.DefaultTaskExecutionModeResolver;
import org.gradle.api.internal.changedetection.state.ResourceSnapshotterCacheService;
import org.gradle.api.internal.file.FileResolver;
import org.gradle.api.internal.project.ProjectInternal;
import org.gradle.api.internal.tasks.TaskExecuter;
import org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter;
import org.gradle.api.internal.tasks.execution.CleanupStaleOutputsExecuter;
import org.gradle.api.internal.tasks.execution.DefaultTaskFingerprinter;
import org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter;
import org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter;
import org.gradle.api.internal.tasks.execution.FinalizePropertiesTaskExecuter;
import org.gradle.api.internal.tasks.execution.FinishSnapshotTaskInputsBuildOperationTaskExecuter;
import org.gradle.api.internal.tasks.execution.ResolveAfterPreviousExecutionStateTaskExecuter;
import org.gradle.api.internal.tasks.execution.ResolveBeforeExecutionOutputsTaskExecuter;
import org.gradle.api.internal.tasks.execution.ResolveBeforeExecutionStateTaskExecuter;
import org.gradle.api.internal.tasks.execution.ResolveBuildCacheKeyExecuter;
import org.gradle.api.internal.tasks.execution.ResolveIncrementalChangesTaskExecuter;
import org.gradle.api.internal.tasks.execution.ResolveTaskExecutionModeExecuter;
import org.gradle.api.internal.tasks.execution.ResolveTaskOutputCachingStateExecuter;
import org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter;
import org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter;
import org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter;
import org.gradle.api.internal.tasks.execution.StartSnapshotTaskInputsBuildOperationTaskExecuter;
import org.gradle.api.internal.tasks.execution.TaskFingerprinter;
import org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter;
import org.gradle.api.internal.tasks.properties.PropertyWalker;
import org.gradle.api.internal.tasks.properties.annotations.FileFingerprintingPropertyAnnotationHandler;
import org.gradle.caching.internal.controller.BuildCacheController;
import org.gradle.caching.internal.tasks.DefaultTaskCacheKeyCalculator;
import org.gradle.caching.internal.tasks.TaskCacheKeyCalculator;
import org.gradle.execution.taskgraph.TaskExecutionGraphInternal;
import org.gradle.internal.classloader.ClassLoaderHierarchyHasher;
import org.gradle.internal.cleanup.BuildOutputCleanupRegistry;
import org.gradle.internal.event.ListenerManager;
import org.gradle.internal.execution.OutputChangeListener;
import org.gradle.internal.execution.WorkExecutor;
import org.gradle.internal.execution.history.ExecutionHistoryStore;
import org.gradle.internal.execution.history.OutputFilesRepository;
import org.gradle.internal.execution.impl.steps.UpToDateResult;
import org.gradle.internal.file.RelativeFilePathResolver;
import org.gradle.internal.fingerprint.FileCollectionFingerprinter;
import org.gradle.internal.fingerprint.FileCollectionFingerprinterRegistry;
import org.gradle.internal.fingerprint.classpath.ClasspathFingerprinter;
import org.gradle.internal.fingerprint.classpath.impl.DefaultClasspathFingerprinter;
import org.gradle.internal.fingerprint.impl.AbsolutePathFileCollectionFingerprinter;
import org.gradle.internal.fingerprint.impl.DefaultFileCollectionFingerprinterRegistry;
import org.gradle.internal.fingerprint.impl.IgnoredPathFileCollectionFingerprinter;
import org.gradle.internal.fingerprint.impl.NameOnlyFileCollectionFingerprinter;
import org.gradle.internal.fingerprint.impl.OutputFileCollectionFingerprinter;
import org.gradle.internal.fingerprint.impl.RelativePathFileCollectionFingerprinter;
import org.gradle.internal.operations.BuildOperationExecutor;
import org.gradle.internal.scan.config.BuildScanPluginApplied;
import org.gradle.internal.service.DefaultServiceRegistry;
import org.gradle.internal.service.ServiceRegistry;
import org.gradle.internal.snapshot.FileSystemSnapshotter;
import org.gradle.internal.snapshot.ValueSnapshotter;
import org.gradle.internal.work.AsyncWorkTracker;
import org.gradle.normalization.internal.InputNormalizationHandlerInternal;

import java.util.List;

public class ProjectExecutionServices extends DefaultServiceRegistry {
    public ProjectExecutionServices(ProjectInternal project) {
        super("Configured project services for '" + project.getPath() + "'", project.getServices());
    }

    private static final ImmutableList<? extends Class<? extends FileCollectionFingerprinter>> BUILT_IN_FINGERPRINTER_TYPES = ImmutableList.of(
        AbsolutePathFileCollectionFingerprinter.class, RelativePathFileCollectionFingerprinter.class, NameOnlyFileCollectionFingerprinter.class, IgnoredPathFileCollectionFingerprinter.class, OutputFileCollectionFingerprinter.class);

    TaskActionListener createTaskActionListener(ListenerManager listenerManager) {
        return listenerManager.getBroadcaster(TaskActionListener.class);
    }

    TaskExecuter createTaskExecuter(TaskExecutionModeResolver repository,
                                    BuildCacheController buildCacheController,
                                    TaskInputsListener inputsListener,
                                    TaskActionListener actionListener,
                                    OutputChangeListener outputChangeListener,
                                    ClassLoaderHierarchyHasher classLoaderHierarchyHasher,
                                    ValueSnapshotter valueSnapshotter,
                                    TaskFingerprinter taskFingerprinter,
                                    BuildOperationExecutor buildOperationExecutor,
                                    AsyncWorkTracker asyncWorkTracker,
                                    BuildOutputCleanupRegistry cleanupRegistry,
                                    ExecutionHistoryStore executionHistoryStore,
                                    OutputFilesRepository outputFilesRepository,
                                    BuildScanPluginApplied buildScanPlugin,
                                    FileResolver resolver,
                                    PropertyWalker propertyWalker,
                                    TaskExecutionGraphInternal taskExecutionGraph,
                                    TaskExecutionListener taskExecutionListener,
                                    RelativeFilePathResolver relativeFilePathResolver,
                                    WorkExecutor<UpToDateResult> workExecutor
    ) {

        boolean buildCacheEnabled = buildCacheController.isEnabled();
        boolean scanPluginApplied = buildScanPlugin.isBuildScanPluginApplied();
        TaskCacheKeyCalculator cacheKeyCalculator = new DefaultTaskCacheKeyCalculator();

        TaskExecuter executer = new ExecuteActionsTaskExecuter(
            buildCacheEnabled,
            taskFingerprinter,
            executionHistoryStore,
            outputFilesRepository,
            buildOperationExecutor,
            asyncWorkTracker,
            actionListener,
            workExecutor
        );
        executer = new ResolveIncrementalChangesTaskExecuter(executer);
        executer = new ResolveTaskOutputCachingStateExecuter(buildCacheEnabled, relativeFilePathResolver, executer);
        // TODO:lptr this should be added only if the scan plugin is applied, but SnapshotTaskInputsOperationIntegrationTest
        // TODO:lptr expects it to be added also when the build cache is enabled (but not the scan plugin)
        if (buildCacheEnabled || scanPluginApplied) {
            executer = new FinishSnapshotTaskInputsBuildOperationTaskExecuter(executer);
        }
        if (buildCacheEnabled || scanPluginApplied) {
            executer = new ResolveBuildCacheKeyExecuter(cacheKeyCalculator, buildCacheController.isEmitDebugLogging(), executer);
        }
        executer = new ResolveBeforeExecutionStateTaskExecuter(classLoaderHierarchyHasher, valueSnapshotter, taskFingerprinter, executer);
        executer = new ValidatingTaskExecuter(executer);
        executer = new SkipEmptySourceFilesTaskExecuter(inputsListener, executionHistoryStore, cleanupRegistry, outputChangeListener, executer);
        executer = new ResolveBeforeExecutionOutputsTaskExecuter(taskFingerprinter, executer);
        // TODO:lptr this should be added only if the scan plugin is applied, but SnapshotTaskInputsOperationIntegrationTest
        // TODO:lptr expects it to be added also when the build cache is enabled (but not the scan plugin)
        if (buildCacheEnabled || scanPluginApplied) {
            executer = new StartSnapshotTaskInputsBuildOperationTaskExecuter(buildOperationExecutor, executer);
        }
        executer = new ResolveAfterPreviousExecutionStateTaskExecuter(executionHistoryStore, executer);
        executer = new CleanupStaleOutputsExecuter(cleanupRegistry, outputFilesRepository, buildOperationExecutor, outputChangeListener, executer);
        executer = new FinalizePropertiesTaskExecuter(executer);
        executer = new ResolveTaskExecutionModeExecuter(repository, resolver, propertyWalker, executer);
        executer = new SkipTaskWithNoActionsExecuter(taskExecutionGraph, executer);
        executer = new SkipOnlyIfTaskExecuter(executer);
        executer = new CatchExceptionTaskExecuter(executer);
        executer = new EventFiringTaskExecuter(buildOperationExecutor, taskExecutionListener, executer);
        return executer;
    }

    ClasspathFingerprinter createClasspathFingerprinter(ResourceSnapshotterCacheService resourceSnapshotterCacheService, FileSystemSnapshotter fileSystemSnapshotter, StringInterner stringInterner, InputNormalizationHandlerInternal inputNormalizationHandler) {
        return new DefaultClasspathFingerprinter(
            resourceSnapshotterCacheService,
            fileSystemSnapshotter,
            inputNormalizationHandler.getRuntimeClasspath().getResourceFilter(),
            stringInterner
        );
    }

    TaskFingerprinter createTaskFingerprinter(FileCollectionFingerprinterRegistry fingerprinterRegistry) {
        return new DefaultTaskFingerprinter(fingerprinterRegistry);
    }

    FileCollectionFingerprinterRegistry createFileCollectionFingerprinterRegistry(
        ServiceRegistry serviceRegistry,
        List<FileFingerprintingPropertyAnnotationHandler> handlers
    ) {
        ImmutableList.Builder<FileCollectionFingerprinter> fingerprinterImplementations = ImmutableList.builder();
        for (Class<? extends FileCollectionFingerprinter> builtInFingerprinterType : BUILT_IN_FINGERPRINTER_TYPES) {
            fingerprinterImplementations.add(serviceRegistry.get(builtInFingerprinterType));
        }
        for (FileFingerprintingPropertyAnnotationHandler handler : handlers) {
            fingerprinterImplementations.add(serviceRegistry.get(handler.getFingerprinterImplementationType()));
        }
        return new DefaultFileCollectionFingerprinterRegistry(fingerprinterImplementations.build());
    }

    TaskExecutionModeResolver createExecutionModeResolver(
        StartParameter startParameter
    ) {
        return new DefaultTaskExecutionModeResolver(startParameter);
    }
}
